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| There are over 360 species of sharks. There are lots of differences in sharks. The 8 orders of sharks are listed below. Each order ends with '-formes'. |
Squatiniformes
(angel sharks)
flat body , ray-like, 2 dorsal fins;
mouth in front
no anal fin
- up to 15 species
- average 4.9 feet
- found in temperate and tropical waters
Angel
Sharks
Pristiophoriformes
(saw sharks)
snout elongated, sawlike; mouth underneath.
no anal fin
- 5 species
- bentic
- eat small fish and crustaceans
Shortnose sawshark
Squaliformes
(dogfish sharks)
short snout ; not sawlike or ray-like
2 dorsal fins; 5 gill slits
no anal fin
- 90 species
- deep waters
- tropical and temperate seas
- Arctic and Antarctic
Dogfish sharks
(photo)
Bramble sharks
Greenland
shark
Rough sharks
Pygmy shark
Cookie Cutter
sharks
Carcharinformes
(ground sharks)
sliding flap that covers eyes;
2 dorsal fins; 5 gill slits; no fin spines
anal fin
- 197 species
- tropical and temperate waters
- also bentic
- some live in fresh water
Bull Shark
Caribbean Reef
Shark (photo)
Tiger Shark
Lemon Sharks
Blue Shark
Milk Shark
Whitetip Shark
(photos)
Hammerhead
Shark (photos)
Barbelled
Houndshark
Swell Shark
(photo)
Leopard Shark
(photos) (movie)
Silky Shark
(photo)
Soupfin shark
(movie)
Lamniformes
(mackerel sharks)
no sliding flap over eyes;
2 dorsal fins; 5 gill slits; no fin spines
anal fin
- 16 species
- 1 to 32 feet
Mako
Great White
Shark
Thresher Shark
Basking Shark
Goblin Shark
Sand-tiger
Shark (photos)
Crocodile Shark
Megamouth Shark
Orectolobiformes
(carpet sharks)
mouth well in front of eyes;
2 dorsal fins; 5 gill slits; no fin spines
anal fin
- 33 species
- in shore
- tropical waters
- huge difference in sizes
Bamboo
Shark
Zebra Shark
Blind Sharks
Whale Shark
Nurse Shark
(photo)
Ornate Wobbegong
Heterodontiformes
(bullhead sharks)
dorsal fin spins;
2 dorsal fins; 5 gill slits
anal fin
- 8 species
- most primitive
- found in temperate & tropical
- bottom -dwelling
- oyster crusher
California
Horn Shark (photos)
Port Jackson
Shark
Hexanchieformes
(frilled and cow sharks)
6 or 7 gill slits; 1 dorsal fin
anal fin
- 5 species
- like living in deep water
- six or seven gills
Frilled Shark
Broadnose
Sevengill (movie)
| Squatiniformes (angel sharks) |
flat body , ray-like, 2 dorsal fins; mouth in front |
no anal fin |
|
Angel Sharks | |
| Pristiophoriformes (saw sharks) |
snout elongated, sawlike; mouth underneath. | no anal fin |
|
Shortnose sawshark | |
| Squaliformes (dogfish sharks) |
short snout ; not sawlike or ray-like 2 dorsal fins; 5 gill slits |
no anal fin |
|
Dogfish sharks (photo) | |
| Bramble sharks | ||
| Greenland shark | ||
| Rough sharks | ||
| Pygmy shark | ||
| Cookie Cutter sharks | ||
| Carcharinformes (ground sharks) |
sliding flap that covers eyes; 2 dorsal fins; 5 gill slits; no fin spines |
anal fin |
|
Bull Shark | |
| Caribbean Reef Shark (photo) | ||
| Tiger Shark | ||
| Lemon Sharks | ||
| Blue Shark | ||
| Milk Shark | ||
| Whitetip Shark (photos) | ||
| Hammerhead Shark (photos) | ||
| Barbelled Houndshark | ||
| Swell Shark (photo) | ||
| Leopard Shark (photos) (movie) | ||
| Silky Shark (photo) | ||
| Soupfin shark (movie) | ||
| Lamniformes (mackerel sharks) |
no sliding flap over eyes; 2 dorsal fins; 5 gill slits; no fin spines |
anal fin |
|
Mako | |
| Great White Shark | ||
| Thresher Shark | ||
| Basking Shark | ||
| Goblin Shark | ||
| Sand-tiger Shark (photos) | ||
| Crocodile Shark | ||
| Megamouth Shark | ||
| Orectolobiformes (carpet sharks) |
mouth well in front of eyes; 2 dorsal fins; 5 gill slits; no fin spines |
anal fin |
|
Bamboo Shark | |
| Zebra Shark | ||
| Blind Sharks | ||
| Whale Shark | ||
| Nurse Shark (photo) | ||
| Ornate Wobbegong | ||
| Heterodontiformes (bullhead sharks) |
dorsal fin spins; 2 dorsal fins; 5 gill slits |
anal fin |
|
California Horn Shark (photos) | |
| Port Jackson Shark | ||
| Hexanchieformes (frilled and cow sharks) |
6 or 7 gill slits; 1 dorsal fin | anal fin |
|
Frilled Shark | |
| Broadnose Sevengill (movie) |
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